參數(shù)資料
型號(hào)： TLC2558CDWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, SOIC-20
文件頁(yè)數(shù)： 48/48頁(yè)
文件大?。?/td> 1072K
代理商： TLC2558CDWG4
TLC2554, TLC2558
5-V, 12-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS220A –JUNE 1999
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TLC2554/TLC2558 conversion modes (continued)
repeat sweep mode (mode 11)
Repeat sweep mode (mode 11) works the same way as mode 10 except the operation has an option to continue
even if the FIFO threshold is reached. Once the FIFO has reached its programmed threshold, an interrupt (INT)
is generated. Then two things may happen:
1.
The host may choose to act on it (read the FIFO) or ignore it. If the next cycle is a read FIFO cycle, all of
the data stored in the FIFO is retained until it has been read in order.
2.
If the next cycle is not a read FIFO cycle, or another CSTART is generated, all of the content stored in the
FIFO is cleared before the next conversion result is stored in the FIFO, and the sweep is continued.
Table 3. TLC2554/TLC2558 Conversion Mode
CONVERSION
MODE
CFR
D(6,5)
SAMPLING
TYPE
OPERATION
One shot
00
Normal
Single conversion from a selected channel
CS or FS to start select/sampling/conversion/read
One INT or EOC generated after each conversion
Host must serve INT by selecting channel, and converting and reading the previous output.
Extended
Single conversion from a selected channel
CS to select/read
CSTART to start sampling and conversion
One INT or EOC generated after each conversion
Host must serve INT by selecting next channel and reading the previous output.
Repeat
01
Normal
Repeated conversions from a selected channel
CS or FS to start sampling/conversion
One INT generated after FIFO is filled up to the threshold
Host must serve INT by either 1) (FIFO read) reading out all of the FIFO contents up to the
threshold, then repeat conversions from the same selected channel or 2) writing another
command(s) to change the conversion mode. If the FIFO is not read when INT is served, it
is cleared.
Extended
Same as normal sampling except CSTART starts each sampling and conversion when CS is
high.
Sweep
10
Normal
One conversion per channel from a sequence of channels
CS or FS to start sampling/conversion
One INT generated after FIFO is filled up to the threshold
Host must serve INT by (FIFO read) reading out all of the FIFO contents up to the threshold,
then write another command(s) to change the conversion mode.
Extended
Same as normal sampling except CSTART starts each sampling and conversion when CS is
high.
Repeat sweep
11
Normal
Repeated conversions from a sequence of channels
CS or FS to start sampling/conversion
One INT generated after FIFO is filled up to the threshold
Host must serve INT by either 1) (FIFO read) reading out all of the FIFO contents up to the
threshold, then repeat conversions from the same selected channel or 2) writing another
command(s) to change the conversion mode. If the FIFO is not read when INT is served it is
cleared.
Extended
Same as normal sampling except CSTART starts each sampling and conversion when CS is
high.
NOTE: Programming the EOC/INT pin as the EOC signal works for mode 00 only. The other three modes automatically generate an INT signal
irrespective of whether EOC/INT is programmed.
相關(guān)PDF資料
PDF描述
TLC2558CDW 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC2554IPWR 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
TLC2554CD 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
TLC2554CDR 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
TLC2554IPW 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC2558CDWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558CDWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558CPW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12bit 400KSPS ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558CPWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558CPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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